Non-leak seat and anchor for liner-pumps.



C. DRADER & R. R. CANDEE.

NoN-LEAN SEAT AND ANCHOR FoR LINER PUMPS.

APPLICATION FILED DEC..I3. 1913.

Paeued. Aug. 31, 1.9K).

entran s'rafriis rafrniar errores...

CHARLES DRADER AND RAPHAEL ROGERSCANDEE, OF BAKERSFIELD, CALIFRN.

NONsLEAK SEAT AND ANCHOR l'.EOII, LINER-PUMPS To all elf/mm it may concern:

Be it known that we, CnARLns Da ADER, a subject of the King of Great Britain, and Rxrimici. Romans CAXnm-z, a` citizen of the United States, both residing at Bakersfield, in the county of Kern and State of California, have invented a new and useful Non- Leak Seat andk Anchor for Liner-Pumps,of which the-following is a specification.

rfhis invention relates to a seat for liner pumps which may serve to anchor a stand valve in the shoe of the ordinary liner pump, and may also serve to anchor the working barrel inthe tubing of a removable liner pump. f

An object of the invention is to provide a positive non-leak seat which finds particular utility to secure working barrels of removable liner pumps in thetubing.

A further Objectis to eliminate all possibility of an accumulation of sand behind the working barrel walls which would freeze and make removal of the working barrel difficult.

In the pump workiilgbarrel, the stand valve and shoe of 'the tubing, and in the removable liner pump the Working barrel and tubing are attached only ten'iporarily.

A further object of the present invention is to provide an anchor that will quickly and with facility secure together' these temporarily anchored parts of the 'liner pump construction.

It is a still further object of the invention to provide temporaryl anchoring means whereby the parts v*temporarily anchored together can very quickly and with facility be disconnected.

Still another object of the invention is to provide a combined 'non-leak seat and vanchor that can manufactured at'low cost and without in 'any way requiring the reconstruction of liner pumps now in use.

Theimportant features, capabilities and advantages of the invention will become apparent from the 'subjoined detail deseription of certain specific embodiments thereof.

The accompanying drawings illustrate the invention. Y y

Figure l a side elevation of the upperl 'end of a removable barrel', showing the anchor before berng used. Fig. 2 1s a side elevation of the shoe of the removable barrelslrowing the anchor before being used. Fig. is a fragn'iental section of a removableliner pump having a removable barrel Specification of Letters Patent.

Fatentcd Aug. 31, 1915.

Application filed December 13, 1913. Serial No. 806,631.

provided with the present anchor and wedged into the tubing.V Fig. t is a frag mental section similar to Fig. 3 showing a different form of removable working barrel equipped with the present anchor and wedged into the tubing. Fig. 5 is i section of the lower end of a stationary working barrel showing a stand valve` equipped with the present anchor wedged into the shoe of said working barrel. lig. is an elevation of a stand valve of the construction shown in Fig. 3 detached, showing the anchor before being used.

In the construction shown in Figs. 1. 2 and 3 the invention is shown in connection with a removable liner pump. rl`he lower end of the main pump stock or tubing l is provided with an external screw thread to receive the upper end of a collar 2 having an intermediate diminished bore 3 and a lower end internally screw-threaded to receive the upper externally screw-threaded end of the section of tubing L The lower end of the tubing section 4 is externally screw-threaded to receive the upper end of a shoe 5 which has an inner tapered face 6 at its lower end. Between the collar 2 and the shoe 5 a removable working barrel 7 is secured in the operation of the pump.

The working barrel. 7 is externally screwthreaded at its upperend to receive the sleeve 8, which has a diameter just sull'icient to pass through the diminished bore 3 of the collar 2. rlhe lower end of the working barrel 7 is externally screw-threaded to receive the main valve seat 9 which has a lower tapered portion l() to fit into the inner tapered face (i of the shoe 5.

To' secure the working barrel in position in the operation of the device' the sleeve 8 and main valve seat 9 are equipped with the novel non-leak scat and anchor forming the mainpart of the present invention. For this purpose the outer face of the sleeve 8 is provided with theductile metal ring ll made of soft pliable metal, such as lead or the like. To properly anchor the metal ring on the sleeve 8, there is provided in the present instance an annular groove l2 in the face of the sleeve 8 in which the metal ring is lodged. -The ductile metal ring l1 projects out from the face of the sleeve 8 sulliciently (see Fig. l) soithat when said sleeve 8 come into cont t with the inner face of the collar 2; and the. metal of said ring will be is nioved into the collar it will Asufficiently soft so that as said sleeve 8 is there be any foreign material, such as sand,

between the contacting surfaces of the collar 2 and sleeve 8, or any irregularities in the faces of these parts, such as scorings, or the like, the metal of the ring when spreading will flow into and over suchimpe Rections to shut off all possibility of leakage, thus forming a positive non-leak seat. Similarly the tapered face of the main valve seat 10 is provided with an metal ring such as the ductile metal ring 13 (see Fig. 2) lodged in the annular groove 14 formed in the tapered face of the valve seat 10. The purpose and action of this metal ring is the same as that of the metal ring 11. 1n practice the distance between the metal rings 11 and 13 will be such that they will s iniultaneously engage the proper surfaces respectively, the metal ring 11 engaging the inner surface of the diminished bore l3, and the metal ring 13 the inner tapered face 6 of the shoe 5.

It is to be noted by reference to the drawings that the seats 3 and 6 for the 'ductile metal rings 11 and 13 and likewise the seats for the ductile metal seats 11 and 13 are very slightly tapered so that when the projecting rings shown in Figs. l and 12 are forced into said seats by the members S and 9 which carry said rings the impingement between the rings 11 and 13 is very forcible so as to squeeze and spread the metal into close'frictionalcontact with said seats, thus to form a strong locking effect to anchor the liner in the tubing, said anchorage, hmvever,`being capable of being overcome by sufficient force much greater than is likely to come upon a liner except through the purpose of. the operator who lwishes to withdraw the liner from the tubing.

. Inside of the main valve seat 9 is located an inner valve seat 15 having a lower tapered end 16 to fit into an inner tapered face 17 of the main valve seat 9. A ball seat 18 is located in the upper vend of the valve scat l5 to receive a ball 19, and aball cage 20 is positioned above the ball seat .and ball, and secured to the valve seat 15.

The face of the .tapered end 16 is provided With a metal ring 21 lodged in an annular groove 22 similarly to that of the main valve seat 9. -When thel device is put in place ready for pumpingto form the stai d valve of the pump, the inner valve seat 5 will be anchored inside of the main valve seat 9 by means of this metal ring 21 in the same manner as metal ring 13 anchors the main valve seat 9. n

The inner valve seat may be thrust into the main valve seat in any suitable manner. In the present instance a sucker-rod may be operated to do this. In Fig. 3 a suitable arrangement of sucker-rod is shown. The sleeve 8 is provided with an inner opening 23 through which the lowermost sucker-rod 24: is adaptedto reciprocate. To the lower end of the sucker-rod 21 is secured a ball cage 25 fastened to the usual piston sleeve 26 and provided with a ball 27- and ball seat 28 held. in place between the sleeve 26 and ball cage The upper end of the cage 25 presents a shoulder29 which is 'of greater diameter than the opening 28 of the sleeve 8.

The pump stock and lower section of tubing el is permanently positioned in the well. To introduce the 4removable working barrel 7, the 'ball cage 20, and the ball cage 25 fastened to the lower end of the rod 24 are placed inside the working barrel, and then the sleeve 8 secured in place to retain the hall cages 20 and 25 in said working barrel. The working barrel is then lowered by means of a string of sucker rods, and when the metal ring 13 engages the tapered face 6 of the shoe, and the metal ring 11 engages the diminished bore 3 of the collarv2 then the piston sleev'e 26 is .let down on top of 'the cage 20 and the sucker-rods pounded down so that the metal rings will spread and form a non-leak seat and anchor as already eX- plained. With'this pounding of the suckerrods, the metal ring 21 of the inner valve seat will be wedged against the inner tapered face 17 of the main valve 'seat 9, and

29 of the ball cage 25 will engage the lower end of the sleeve S. The frictionaflengagement of the metal rings 1 1 and with the diminished bore 3 and shoe 5 respectively is just sulicient to properly anchor the working barrel for working conditions but not so tight as to make removal of the same diliicult.

Fig. 4 illustrates the invention as shown in connection with another form of liner pump. The lower end'of the main' pump stock 1 is provided with an external screw thread to receive the upper. end of a cylindrical collar 2 which has a lower end in` ternally screw-threaded to receive the upper end of a sectgn of tubing 4 which is of smaller bore an the pump stock l. The

Liemeer lower end of the tubingsection t is externally screw-threaded to receive the upper end of the shoe Swhich has an inner tapered tace 6 at its lower end. Vhen the pump is in operation, the working barrel 7 anchored between the collar and'shoe 6 is internally screw-threaded at itsy upper end to receive the sleeve S, which has a diameter' just sufticient to pass through the bore of the tubing section ft. The lower end of the barrel 'Z is internally screwthrea ded to receive the valve 9 which has a lower tapered portion l to lit into the inner tapered tace 6 of the shoe 5. this removable working barrel the 'valve stand is integral with said working barrel, the valve seat 9 having a ball seat 530 positioned at its upper end to receive a ball 3l and a ball cage 32 secured to the upper end of a valve seat to hold the hall and ball seat in place. For the purpose of anchoring this form otl working 1oarrel in operative position, the sleeve S in the present instance is provided with three soft metal. rings ll lodged in annular grooves l2", said rings projecting out Jfrom the face of the sleeve 8 suliicientlv so that they will engage the diminished bore ot' the lower seetion of tubing e and be there wedged in and spread out. when the working vbarrel 7 is thrust into the tubing section 4. The lower tapered portion l0 of the valve seat 9 is provided lwith a ring 13 lodged in the annular groove le similar to the metal ring and groove of the modification shown in Fig. 3. in practice, the distance between the f ('is lowered down through the tubing of the me il rings 1 1 and 13 will be such that they will simultaneously engage the proper surfaces respectively, the metal rings ll engaging trie upper end of the diminished bore ot' the tubing sect-ion fl andthe rings 13 engaging' the inner tapered faces of the shoe rthe remaining parts of these modilications are identical. with corresponding parts of the modication shown in Fig. 3 and therefore such description-will not be repeated.

illustrates the invention shown in connection with a form ot' stationary liner pump. The lower end of the main pump stock l is there 'irovided with a shoe 5 having the inner tapered face 6. A stand valve having valve seat is provided with the lov: A' tui 3.9 which is adapted tapered tace of the shoe upper end ot the valve seat is posI toned a ball seat to receive a ball 35, said seat and ball being retained in place on top of the valve by means ot a ball cage "1' secured to the valve seat 33.

rJU To anchor the stand valve in the shoe 5 the tapered portion is provided with a metal ring 37 lodged in an annular' groove 38 formed in the face of tapered portion 39. This ring projects a sufficient distance from the face of said tapered portion 39, so

that when said stand valve is thrust into the shoe 5 the metal ring '37 will be wedged and Spread out similarly to the metal rings of the other constructions.

the stand valves in Figs. 3 and 4 having ak female screw thread and the stand valve in F ig. 5 having a male screw thread. Should it he required at any time to remove the stand valve of the construction shown in F ig. 5 from the shoe in which it is anchored, the screw-tl readed upper end might then be used to good. advantage, as it would then only be necessary to insert a correspondingly screw-threaded rod into the tubing, fasten the same to the ball cage,I and then Withdraw it, thereby withdrawing the stand valve. Obviously, the lower end of the lower-most sucker rod may be provided with such a corresponding screw thread in order that the sucker rod may be manipulated to remove.

such stand valve.

Glaviously, this non-leak seat and anchor may be used in various devices, and that variations in the details of construction may be made without departing from the general scope of the invention.

lt is to be noted that when the liner barrel metal ring l1 or 1l and engages the smaller bore of the collar or top of the working barrel, it eliminatesall possibility of an accumulation of sand behind the barrel walls that would freeze and make removal' difficult, as the sand cannot settle down out of thepump tubing l into the space between said liner barrel 7 and the tubing section 4.

iV e claim l. In eonil'iination, a shoe having an inner tapered tace at its lower end, a collar` having an interuiediate diminished bore, a tubing section connecting said collar to the upper end oi' the shoe, a working bprrel inside the tubing section and provided at its lower end with a tapered seat to lit the shoe, said seat having an annular groove, a packing ring in the groove to seat on the tapered face of the shoe, a` sleeve connected ito the upper end of the working barrel and provided with a second annular groove, and :1 packing ring in saidv second annular groove 'to engage the diminished bore of the coll-ar.

Q. vThe combination with aV removable liner pump having an outer tubingl provided with a shoe at its lower end, said shoe having its inner tace tapered, said tubinghaving a collar at a predetermined distance li'roln said shoe, said collar having a dimintapered portion of the working barrel eny gagesthe shoe of the tubing and the upper sleeve of the working barrel engages the collar of the tubing` said metal rings will spread and offer sufficient frictionso that the working barrel will be' anchored' into said tubing. 3. The combination with a removable liner pump having an outer tubing provided with a shoe at its lower end, said shoe having its inner face tapered. said tubing having a collar at'a predetermined distance from said shoe,isaid collar having a diminished inner bore,l and a removable working lbarrel having a lower tapered portion and an upper sleeve, the distance between said lower tapered portion and the sleeve corresponding to the distance between the shoe of said tubing and its collar, of a soft metal ring provided on the face ofthe tapered lower portion and a soft metal ring provided on the face. of the upper sleeve, said metal rings being suliciently soft so that when the lower tapered portion of the Working barrel engages the shoe of the tubing and the upper sleeve lof the working bar-rel engages the collar of `the tubing, said metal rings will Spread. and offer sufficient friction vso thatl the working barrel will be anchored in said tubing; and an inner tapered face in theI lower tapered portion of thev working barrel, a stand valve having a lower. tapered portion to seat into said inner tapered face of the working barrel, a soft metal ring provided in the face of said lower tapered portion of the stand valve, said soft metal ring being adapted to spread when the stand valve is forced into the lower tapered porf tion of the working barrel to form a nonleak seat and offer suflicient friction so that the stand valve will be anchored in said working barrel. Y

4. In a liner pump, the combination with a section of tubing of smaller bore at the lower end of the main tubing, a shoe secured to the lower end of said section of tubing, said shoe having an inner tapered face, and a removabl. working barrel having a lowertapered portion and an upper sleeve, the distance between said tapered portion and sleeve corresponding to the distance between the shoe of said tubing and the upper edge of the lower section of tubing, of a soft metal ring provided on the face of said y lower tapered portion and a soft metal ring said metal rings being sulhciently soft so that when the lower tapered portion of tho working barrel engages the shoe of vthe tubing and the upper sleeve of the Working barrel engages the upper portion of ,the lower section of tubing' said metal rings will spread to form a non-leak seat and offer suliicient-friction so that the working barrel will be anchored in said tubing.

5. device of the character described comprising a male member and a female imnlbei', said vfemale member having a siightlgiY tapered seat, a plurality ofannular ductile metal rings secured in the face of said male member, said male member being slightly tapered to vfit 'said seat, said rings being adapted to spread to frictional'ly engage said seat when said male member is thrust vinto the corresponding tapered fe'- male member, the metal rings when Spread engaging the female member with sutlicient frictin so as to anchor the male member ing said barrel in said lower section of tubing, said means comprising a plurality of soft metal rings provided around the upper end of said removable barrel to engage the upper end of said lower section of tubing and a soft metal ring around the lower tapered end of said barrel to engage the inner taperedface of said shoe, said metal rings being suliiciently soft so that when said barrelris thrust into said lower section of tubing the metal ringszwill spread and offer suf' licieut friction so that the working barrel will be anchored in Asaid tubing.

7. A combination seat and anchor for liner pumps comprising a female member, a male member having an annular groove in its outer face, and a ring of ductile metal provided in said groove, said ringbeing adapted to spread into frietional Contact vwith said female member when said male member so that when said male member is.

forced in to said female member, the metal. ring will be thereby forcibly spread and made to frictionally engage the female member 'and form a non-leak anchor seat. n

9. A. deviceV of the character described compl'sng :m nmmm' ducte me'm ring pel'e portion of said shoe, ai. a duct swin'ml in the fue@ oi :L mule member, said miami ring Secmed on ih@ tmf Yed pm m mnh. mmnwr boing tapered, Said ring using of surl szxm wlw-, Suid. mem! ring ming mlnpwl lo Lw spread. through cmxtnc'b with udapud to be forcibly spread when said 5 the, fvnmlc nwmbei when Suid nml@ mcmbu stand vulve is 'forced luto said shoe 50.115 'to is forced im() u currcsgoudugly tapered fcform r1 :um-Leak anchor Sent. mulo nwmlwr, im m01 nl ring whvn Lhus'fm En testimony \.\"ncuof, "we have hereunto cly spwmi vngnging illu fcnmm mombm `Bnm'old.;\H0131:1,this wil 1 suvvul friction so to anchor ihc nth day of fecemjy 19115. 10 111: v nwmlm' in ,mld female mvmbex'.

'Hw (-muluzxtion with the, shoe of u lxwr pump, the inner fue@ vf Suid Shoo lw- 

